Hi all, I wonder (hope!) if you can help. I have three Deco M4 units in my house. I wanted to sort out a black spot we have, so i bought a new unit second hand. Sadly, although it was listed as an M4, it's actually an E4. I have plugged it in and, in spite of all my best efforts, it is not showing up on the Deco app when I try to add a device. I have reset it, plugged it back in, tried everuthing really.

Is it just that this process is not possible? I have checked the forums and it appears to be, but I fear I am missing something simple and obvious. Any help you could give me would be much appreciated!!

Many thanks

Nick